Mainstream class group data is shown separately from standard/year-group enrolment data. The source does not identify which standard/year group each class group belongs to.
Average class size
18.13
2025/26
Mainstream classes
15
2025/26
Largest class group
28
2025/26
Classes with 30+ pupils
0
2025/26
Class group metrics trend
Class group metrics by year
Year
Mainstream class pupils
Mainstream classes
Average class size
Largest class
Classes 30+
2006/07
92
5
18.40
23
0
2007/08
96
5
19.20
29
0
2008/09
89
5
17.80
26
0
2009/10
92
5
18.40
26
0
2010/11
96
5
19.20
28
0
2011/12
100
5
20.00
28
0
2012/13
111
5
22.20
28
0
2013/14
134
6
22.33
36
1
2014/15
162
8
20.25
29
0
2015/16
172
9
19.11
33
1
2016/17
204
10
20.40
30
1
2017/18
235
11
21.36
33
2
2019/20
280
13
21.54
33
2
2020/21
305
15
20.33
31
1
2021/22
292
15
19.47
32
1
2022/23
288
16
18.00
22
0
2023/24
281
16
17.56
23
0
2024/25
281
16
17.56
23
0
2025/26
272
15
18.13
28
0
Data highlights
Key numbers to spot outliers or notable changes.
Biggest gain in a single year: 2016/17: 172 in 2015/16 → 204, +32 pupils.
Biggest loss in a single year: 2021/22: 305 in 2020/21 → 292, -13 pupils.
Largest single-class increase: 1st Class in 2025/26 (27 → 44, +17).
Largest single-class decrease: 1st Class in 2024/25 (37 → 27, -10).
Largest cohort-step gain: SI → 1st in 2022/23 (34 → 37, +3).
Largest cohort-step loss: 1st → 2nd in 2021/22 (39 → 35, -4).
Overall: 89 (1993/94) → 280 (2025/26), 191.
Summary statistics (class-level data)
Min / max / mean enrolment per class across the available final by-standard years.
Class
Min
Max
Mean
Years
Junior Infants
27
43
35.2
6
Senior Infants
26
42
35.8
6
1st Class
27
44
37.7
6
2nd Class
28
43
36.0
6
3rd Class
33
40
36.5
6
4th Class
32
42
37.3
6
5th Class
31
39
36.0
6
6th Class
30
40
34.2
6
Total
64
305
147.4
33
Total enrolment over time
Total and gender trends use historical records where available. Class-level data starts in 2020/21.
Enrolment by gender over time
Enrolment by class over time
Cohort progression
Track how each cohort (pupils who were in the same class in the same year) progresses through the school. Each step shows the count; the number between steps is the net change (pupils gained minus pupils lost).